Henman hits impressive serving form

Tim Henman believes that the influence of his coach, Paul Annacone, is helping him to serve more aggressively. Henman was in impressive form as he booked a quarter-final with Andy Roddick at the Pacific Life Open here.

Tim Henman believes that the influence of his coach, Paul Annacone, is helping him to serve more aggressively. Henman was in impressive form as he booked a quarter-final with Andy Roddick at the Pacific Life Open here.

The 29-year-old powered into the last eight with a 6-1, 6-3 win over Australia's Wayne Arthurs as he broke three times in the first set and twice in the second. He puts his serving down to talks with Annacone which helped him to "not try too hard".

Roddick advanced via an equally impressive 6-3, 6-2 win, including 17 aces, over Nicolas Escudé, of France. "I'm in a pretty good groove right now," he said. "I just want to keep it up."

Henman will take heart from his record against the American, having won two of their three meetings. "I think my game matches up well against him," Henman said. "I'm quick enough to get a lot of balls back. That's something you need to do against him."